Hi guys, I'm going canoeing with my class soon and on a field trip in the forest. For this, we have to build three measuring tools ourselves:
I've been trying to figure out how to build something like this, but haven't found anything. Do you have any ideas?
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You have a rope with weight and a stick for everything.
Best with nodes at regular intervals to mark.
Application for tree size measurement and water depth should be trivial. Measuring the flow rate is somewhat more complicated but can be read on the Internet (actual defacto a lot).
If the height of trees is to be carved, it becomes more complicated. But this is also done by measuring the projected height of the tree and distance from the projection surface.
(Stockpeiling keyword)
It then needs a standardized floor or something.
Height of trees: can be measured with a theodolite. For this, you need one meter (to measure how high your measuring tube is from the ground and the distance to the tree, a geo triangle, as thin as possible a piece of pipe (length about 20-40cm) where you stick to both end paper/film and pierce on both sides as centrally as possible a hole through and a short piece of cord with a small weight that you bind centrally around your pipe.
Proceedings: you’re holding the pipe, your colleague’s the Geodreieck. Distance to the tree and distance tube-ground measuring. Now, if possible, hold the tube at the position and look at the tree crown. Here, an angle alpha is set between your pipe and the downhanging cord, which your colleague measures by means of geo triangle.
Now you have to count:
h=tan(alpha-90)*a+b
Legend:
h: height of the tree
a: Distance to the tree
b: distance from the center of the tube to the bottom
alpha: angle between cord and pipe, measured by the height of the pipe.
Ready!
Measuring flow speed: meter rod/mat band + stopwatch + rubber/styrofoam block/piece
Formula: Speed=Strecke/Zeit
Result is in meters/second. *3,6 for km/h.
Measuring water depth: meter rod + heavy stone on cord/long stick (clearly you could also hold the meter bar in, but this probably does not go through as self-made)
A simple multi-way straw could also serve as a simple alternative to the prepared pipe.
Small comment on the edge, measuring tools are not available. In my training, we were taught. There are instruments with which I can measure everything possible. ‘Sekunde’ (s), ‘Meter’ (m), ‘Kilogram’ (kg), ‘Ampere’ (A), ‘Kelvin’ (K), ‘Mol’ (mol) and ‘Candela’ (cd) From these 7 units, all other common dimensions can be derived.
Tools are used to change objects. Feile, pliers, drills, chisels, screwdrivers, keys that can be continued as desired.
Measuring instruments therefore do not change anything, but capture values. Unfortunately, there are many words in our language that strictly do not make any sense.
I understand what you mean, but my teacher formulated it so jaa
You can tell her that the landline name is not professional.
1 roll pink or bright blue pack cord, bright, not natural colors. Wrap them on a dragon cord mount so that they do not knot.
Stone water depth, piece of wood flow speed, long branch tree heightComparatively, you find there, or throw stone at cord up and through.
Your measure for cord measurement, you always have, is your span. Measure at home.
Have fun there 💛🍀🌳🍄🌞🛶🕯️🔦📔✏️🏕️🐞💙.
So, at least for the water depth and the trees (what are you supposed to measure at all???) I would already have ideas…
So we should measure the height of the trees. What ideas?
What class are you? What have you learned so far in mathematics and physics? – I can’t imagine you’re missing the necessary basic knowledge. So tighten your brain (you, your friends, whoever). Discuss how you can do that, who can fake something… You really don’t need this forum…